| 摘要 |
A text comparison apparatus computes the occurrence count of text elements, stores those text elements that have an occurrence count of at least a occurrence count threshold for storage in a text element storage unit, uses those text elements that have an occurrence count of at least a occurrence count threshold for similarity calculation to calculate similarity, and calculates discrepancy for those text elements for which the difference of occurrence counts is at least a occurrence count threshold for discrepancy calculation.
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